Fluke PM6669 Operator's Manual page 40

Frequency counter
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Output Data Separator:
is LF. The separator can be programmed to be any non
printable ASCII-code with decimal equivalent 0-31, ex-
cept 27 (ESC).
In addition the combination 13+10 (CR+LF) can be pro-
grammed. The EOI-line can be programmed to be active
together with the last output byte sent.
Output Format:
Measuring result is sent as:
Function code 3 to 6 characters
Normally space. O on overflow
Measuring result
FFFFFFOXXXXXXXXXXE±XS(S)
When you select 'Short output format' FFFFFF and lead-
ing zeroes are omitted.
High-Speed Dump
The contents of the counting registers are transferred to
the controller, without being processed by the counter.
The processing must be done in the controller instead.
Max output rate is approximately 100 readings/s.
The output format is FMXXXXXXXXXXXXS(S) where F
is calculation formula, M is multiplier, X..X = 12 hex-dig-
its representing the register contents, and S(S) is the set
output separator.
Ranges:
Same as for normal operation, with the following
exceptions:
Frequency;
Max measuring time: 1 s
Period, Average;
Max measuring time: 1.4 s
Time Interval, Average;
Max measuring time: 4 s
-7
Ratio A/B:
0 and 6*10
-8
Ratio B/A:
0 and 6*10
Ratio C/A, C/B:
8 to 4*10
Max Data Output Rate:
ings/s. High-speed dump gives >100 readings/second.
SPECIFICATIONS
Default separator at power-on
Exponent pointer
Exponent sign (+ or -)
Exponent value 0 to 9
Selected separator
Second separator
LF only if output
separator CR+LF
has been selected.
21(22) characters.
0 ns to 1.6 s
8
to 1.6*10
7
to 1.6*10
9
Normal mode gives >5 read-
The highest output rate is obtained at SINGLE Measur-
ing-time.
Output Time for Measuring Data;
Normal operation:
Approx. 10 ms (21 bytes)
High-speed dump:
Approx. 4 ms (15 bytes)
Response time for addressing:
Response Time for Trigger Command (GET):
Normal Operation:
Approx. 10 ms
High-Speed Dump:
Approx. 2 ms
Response Time for Serial Poll:
Input Buffer Size:
28 bytes
Typical Read Time for Programming Data:
prox. 1 ms/byte (unless input buffer is full)
Battery Unit PM 9605
The PM 9605 is a rechargeable battery unit for mount-
ing inside the counter. The unit contains a standard 6 V
sealed lead-acid battery and an automatic battery
charger.
Battery Capacity (20°C):
Operating Time When Battery Powered:
continuous operation.
Recharging Time:
7 hours to approx 75% of full capac-
ity.
Battery Protection:
Overcharge protection and auto-
shut-off total discharge protection.
Temperature,
Operating:
0 to +40°C
Storage:
–40 to +50°C
Weight:
0.8 kg
Rack Mounting Adapter, PM 9606/01
The PM 9606/01 is a 19" wide Rack Mounting Adapter.
It can host one PM 6662, PM 6665, PM 6666 or
PM 6669 Counter only.
Rack Mounting Adapter, PM 9606/02
The PM 9606/02 is a 19" wide Rack Mounting Adapter.
It can host one PM 6662, PM 6665, PM 6666 or
PM 6669 Counter together with a second instrument.
PM 6669 - OPERATORS MANUAL
Page: 39
Approx. 5 µs
Approx. 1.5 ms
Ap-
Approx 15 Wh
3 hours of

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